﻿<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <SolidColorBrush x:Key="GlyphBrush" Color="#444" />

    <Style x:Key="ExpandCollapseToggleStyle" TargetType="ToggleButton">
        <Setter Property="Focusable" Value="False"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="ToggleButton">
                    <Grid
          Width="15"
          Height="13"
          Background="Transparent">
                        <Path x:Name="ExpandPath"
            HorizontalAlignment="Left" 
            VerticalAlignment="Center" 
            Margin="1,1,1,1"
            Fill="{StaticResource GlyphBrush}"
            Data="M 4 0 L 8 4 L 4 8 Z"/>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsChecked"
               Value="True">
                            <Setter Property="Data"
                TargetName="ExpandPath"
                Value="M 0 4 L 8 4 L 4 8 Z"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
    <Style x:Key="TreeViewItemFocusVisual">
        <Setter Property="Control.Template">
            <Setter.Value>
                <ControlTemplate>
                    <Border>
                        <Rectangle Margin="0,0,0,0"
                 StrokeThickness="5"
                 Stroke="Black"
                 StrokeDashArray="1 2"
                 Opacity="0"/>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
    <Style 
     TargetType="{x:Type TreeViewItem}">
        <Setter Property="Background"
      Value="Transparent"/>
        <Setter Property="HorizontalContentAlignment"
      Value="{Binding Path=HorizontalContentAlignment,
              RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
        <Setter Property="VerticalContentAlignment"
      Value="{Binding Path=VerticalContentAlignment,
              RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
        <Setter Property="Padding"
      Value="1,0,0,0"/>
        <Setter Property="Foreground"
      Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
        <Setter Property="FocusVisualStyle"
      Value="{StaticResource TreeViewItemFocusVisual}"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type TreeViewItem}">
                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition MinWidth="19" Width="Auto"/>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="*"/>
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto"/>
                            <RowDefinition/>
                        </Grid.RowDefinitions>
                        <ToggleButton x:Name="Expander"
                  Style="{StaticResource ExpandCollapseToggleStyle}"
                  IsChecked="{Binding Path=IsExpanded,
                              RelativeSource={RelativeSource TemplatedParent}}"
                  ClickMode="Press"/>
                        <!--
                                      BorderBrush="{TemplateBinding BorderBrush}"
                                      BorderThickness="{TemplateBinding BorderThickness}"
                        -->
                        <Border CornerRadius="2,2,2,2"
                            Name="Bd"
              Grid.Column="1"
              Background="{TemplateBinding Background}"
              Padding="{TemplateBinding Padding}" BorderThickness="1" BorderBrush="#00B6B6B6">
                            <Grid>
                                <ContentPresenter x:Name="PART_Header"
                                    Margin="5,1,5,1"
                                    ContentSource="Header"
                                    HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" IsHitTestVisible="False"/>

                                <Rectangle Fill="#02000000" Name="MouseOverTrap"/>
                            </Grid>
                        </Border>
                        <ItemsPresenter x:Name="ItemsHost"
                  Grid.Row="1"
                  Grid.Column="1"
                  Grid.ColumnSpan="2"/>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseDirectlyOver" SourceName="MouseOverTrap" Value="True">
                            <Setter Property="BorderBrush" TargetName="Bd" Value="#7FB6B6B6"/>
                        </Trigger>
                        <Trigger Property="IsExpanded"
                			Value="false">
                            <Setter TargetName="ItemsHost"
                				Property="Visibility"
                				Value="Collapsed"/>
                        </Trigger>
                        <Trigger Property="HasItems"
                			Value="false">
                            <Setter TargetName="Expander"
                				Property="Visibility"
                				Value="Hidden"/>
                        </Trigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="HasHeader"
                					Value="false"/>
                                <Condition Property="Width"
                					Value="Auto"/>
                            </MultiTrigger.Conditions>
                            <Setter TargetName="PART_Header"
                				Property="MinWidth"
                				Value="75"/>
                        </MultiTrigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="HasHeader"
                					Value="false"/>
                                <Condition Property="Height"
                					Value="Auto"/>
                            </MultiTrigger.Conditions>
                            <Setter TargetName="PART_Header"
                				Property="MinHeight"
                				Value="19"/>
                        </MultiTrigger>
                        <Trigger Property="IsSelected"
                			Value="true">
                            <Setter TargetName="Bd"
                				Property="Background" Value="DarkGray"/>
                            <Setter Property="Foreground" Value="White"/>
                        </Trigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="IsSelected"
                					Value="true"/>
                                <Condition Property="IsSelectionActive"
                					Value="false"/>
                            </MultiTrigger.Conditions>
                            <Setter TargetName="Bd"
                				Property="Background"
                				Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
                            <Setter Property="Foreground"
                				Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
                        </MultiTrigger>
                        <Trigger Property="IsEnabled"
                			Value="false">
                            <Setter Property="Foreground"
                				Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>